Any idea why my Ipomea Violacea flowers remain all white, in deed almost all white: there are sometimes little little diffuse stains of purple at the basis of the corolla. It should be deep ...
I grew some Sedum spectabile 'Neon' and it flowered very well, but the flowers do not last very long. I would like to extend the flowering period. I noticed a scattering of rebloom, but it was not ...